A straight line passes through the point P(1,2) and Q
A straight line passes through the point P(1,2) and Q
(5,8). Calculate the length PQ
4√11
4√10
2√17
2√13
Correct answer is D
|PQ| = √(x2−X−1)+(y2−y1)2
= √(5−1)2+(8−2)2
= √42+62
= √16+36
= √52
= 2√13
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